/*
 * Copyright 2017 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package systemgetproperty;

import static com.google.j2cl.integration.testing.Asserts.assertTrue;

public class Main {

  private static int counter = 0;

  public static void main(String... args) {
    assertTrue(System.getProperty("jre.classMetadata").equals("SIMPLE"));
    assertTrue(System.getProperty("jre.bar", "bar").equals("bar"));

    assertTrue(counter == 0);
    assertTrue(
        System.getProperty("jre.classMetadata", getDefaultWithSideEffect()).equals("SIMPLE"));
    // Side effect should not be lost.
    assertTrue(counter == 1);
  }

  private static String getDefaultWithSideEffect() {
    counter++;
    return "Foo";
  }
}
